ISO/IEC 20000 Listings - Hong Kong
- ATOS Origin (Hong Kong) Limited
- CITIC Telecom International CPC Limited
- The Dairy Farm Company Limited - IT Department
- Dimension Data China/Hong Kong Ltd
- Diyixian.com Limited
- HM Information Services Limited
- The Hong Kong and China Gas Company Limited
- Hong Kong Examination and Assessment Authority (the Authority) - UT Division
- Hong Kong Housing Society
- Hong Kong Telecommunications (HKT) Limited - Customer Services - Engineering
- Hong Kong Telecommunications (HKT) Limited - Network Facilities Management
- IBM China / Hong Kong Limited
- Jardine OneSolution (HK) Limited
- New World Telecommunications Limited Networks & Information Technology
- NWS Engineering Group Limited
- NWS Engineering Group Limited IT Department
- Office of the Government Chief Information Officer - The Government of the Hong Kong Special Administrative Region
- PCCW Solutions Limited